I have an El Cheapo piston filler that I keep around for this and that. I also have a thing of silicon grease I ordered from Pendemonium a while back. The piston was a little gritty, so I added a very small amount of grease to the threads of the piston knob/cap. It smoothed up right away.

However, after having let the pen sit a while, I went to turn the piston cap, and thought it was jammed. It required much more force than it ever had.

It works fine now, and is indeed smoother, but still requires more force to operate than it did before.

So I'm wondering, did I do wrong by adding the grease to the threads (or did I perhaps add too much, or to the wrong place)?

What I do is I applied a small amount *tiny bit* of silicone grease around the inside barrel of the piston filler/converter.

The inside, as in, the chamber where the ink would go?

If your piston is frozen then yes just apply small amount*tiny* of grease inside and a few turns will do it.

Check this out:

http://www.fountainpennetwork.com/forum/in...showtopic=46609

Excellent. Thanks much. The piston wasn't stuck, just a little stiff. Figured the grease would smooth it out.